late_init 1.0.1

Execute code at a later stage, but before build has been called for the first time. Useful for initializations that depends on the context

late_init

Execute code at a later stage, but before build has been called for the first time. Useful for initializations that depends on the context

*This package was heavily inspired by after_layout

Quick Usage

Add with LateInitMixin

Motivation

If you want to display a widget that depends on the context (such as ModalRoute or Provider ), you can not use that in initState.

Usage

This demo showcases how this package resolves the shortcomings shown above:

import 'package:flutter/material.dart';
import 'package:late_init/late_init.dart';

void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'Late Init - Example',
      home: new HomeScreen(),
    );
  }
}

class HomeScreen extends StatefulWidget {
  @override
  HomeScreenState createState() => new HomeScreenState();
}

class HomeScreenState extends State<HomeScreen> with LateInitMixin {
  @override
  void lateInitState() {
    final someId = ModalRoute.of(context).settings.arguments as String;
  }

  @override
  Widget build(BuildContext context) {
    return new Scaffold(body: new Container(color: Colors.red));
  }
}